Question:
The army crossed the river because it was shallow.

Who is it referring to in this sentence?
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Answer:
the river


Question:
Beowulf was granted the crown to succeed King Henry since he was the best man for the job due to a lack of a rightful heir.

Who is he referring to in this sentence?
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Answer:
Beowulf


Question:
When Sue went to Nadia's home for dinner, she caught the wrong bus and arrived late.

Who is she referring to in this sentence?
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Answer:
Nadia


Question:
Jack the ripper killed John, but he was not caught yet.

Who is he referring to in this sentence?
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Answer:

Jack